You have just deposited X dollars in your bank account that pays interest of 7 percent p.a. You discover that at the end of one year you have $ 16,855 in the account. What was X, that is, the amount of money that you deposited today? (Record your answer without a dollar sign, without commas and round your answer to 2 decimal places; that is, record $3,245.847 as 3245.85).